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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-03 11:05:28 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-03 11:05:28 -0700 |
commit | 23806a3e960048f8191ce0d02ff8d5f70e87ad4b (patch) | |
tree | e7a77367b9f2c1c86e5782742e55ad2d959ef4fa /kernel | |
parent | 9ccce092fc64d19504fa54de4fd659e279cc92e7 (diff) | |
parent | 42eb0d54c08a0331d6d295420f602237968d792b (diff) | |
download | linux-23806a3e960048f8191ce0d02ff8d5f70e87ad4b.tar.bz2 |
Merge branch 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull receive_fd update from Al Viro:
"Cleanup of receive_fd mess"
* 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: split receive_fd_replace from __receive_fd
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/seccomp.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c index 1e63db4dbd9a..6ecd3f3a52b5 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -119,8 +119,11 @@ struct seccomp_kaddfd { int fd; unsigned int flags; - /* To only be set on reply */ - int ret; + union { + bool setfd; + /* To only be set on reply */ + int ret; + }; struct completion completion; struct list_head list; }; @@ -1069,7 +1072,11 @@ static void seccomp_handle_addfd(struct seccomp_kaddfd *addfd) * that it has been handled. */ list_del_init(&addfd->list); - addfd->ret = receive_fd_replace(addfd->fd, addfd->file, addfd->flags); + if (!addfd->setfd) + addfd->ret = receive_fd(addfd->file, addfd->flags); + else + addfd->ret = receive_fd_replace(addfd->fd, addfd->file, + addfd->flags); complete(&addfd->completion); } @@ -1583,8 +1590,8 @@ static long seccomp_notify_addfd(struct seccomp_filter *filter, return -EBADF; kaddfd.flags = addfd.newfd_flags; - kaddfd.fd = (addfd.flags & SECCOMP_ADDFD_FLAG_SETFD) ? - addfd.newfd : -1; + kaddfd.setfd = addfd.flags & SECCOMP_ADDFD_FLAG_SETFD; + kaddfd.fd = addfd.newfd; init_completion(&kaddfd.completion); ret = mutex_lock_interruptible(&filter->notify_lock); |